TRIO for Piano, Violin, and Cello (1984)

TRIO combines graphic notation with traditional notation. In addition to extended instrumental techniques, the piece incorporates the performers' vocalizations (whispering, unpitched) and whistling (likewise pianissimo, blending breath with sound). The texts consist of brief, fragmentary quotations excerpted from the only Italian-language letter written by Robert Schumann—penned in Mantua in 1829 but never sent—which describing his journey to Italy. The piece concludes with a madrigalism depicting the setting sun, conceived as a homage to Carlo Gesualdo da Venosa.

Regarding the various physical actions required of the performers, Mr. Caprioli referenced a passage from Roland Barthes's The Responsibility of Forms (L'obvie et l'obtus):

The complete score: https://www.youtube.com/watch?v=9UTLrFA3tgo